Random Quiz Questions

Question 1

Where do axons of the cells to which the arrows point terminate ?

Answer 1

Deep cerebellar nuclei

(green arrows point to purkinje cell layer)

Question 2

A 63-year-old woman presents with a sudden onset of diplopia, and with ataxia and tremor on her right side. CT reveals a small hemorrhage in the area indicated in the image. Involvement of what structure is responsible for the ataxia and tremor?

Answer 2

Superior Cerebellar Peduncle

Question 3

A 45-year-old woman visits her family physician with the complaint of a persistent low-grade discomfort in her eyes. Examination reveals that her eyes are inflamed and that she has the apparent lack of tear production. This is called dry eye syndrome. Which cranial nerve nucleus specifically participates in the secretory function that is compromised in this woman?

Answer 3

Superior salivatory nucleus

Question 4

A 37-year-old woman is diagnosed with multiple sclerosis. MRI shows an area of demyelination in the area indicated in the image below. What deficits would correlate most specifically with the location of this lesion?

Answer 4

Tongue deviates to the right, weak left lower extremity

Question 5

Which area the location of the cells of origin for the nerve fibers located in the area to which the arrow points?

Answer 5

Right anterior paracentral lobule

Question 6

A 34-year-old man presents with the gradual onset of a motor deficit. An MRI reveals a lesion localized to the area to which the arrow points.

What would MOST LIKELY be the predominant difficulty experienced by this man?

Answer 6

Left hemiballismus

Question 7

A 69-year-old man presents with motor deficits that suggest profound cell loss in the area indicated on the image.

What would MOST LIKELY be seen in this man?

Answer 7

Resting tremor on the right

Among other things obviously…

Question 8

Which neurotransmitter is associated with neuronal cell bodies located in the structure to which the arrows point?

Answer 8

GABA

Question 9

Which cells provide afferent nerve fibers to the structure to which the arrow points?

Answer 9

Purkinje cells

Question 10

What fibers represents the largest population of fibers comprising the structure indicated by the asterisk?

Answer 10

Pontocerebellar fibers

Question 11

Which of the following nuclei give rise to axons that project to the cerebellar cortex on the contralateral side where they end as climbing fibers?

Answer 11

4

Question 12

The visceromotor (autonomic) preganglionic fibers that terminate in the ciliary ganglion originate in what nucleus?

Answer 12

4

The edinger westfall nucleus